Monitors

1
Monitors

• LCD technology uses
• Less power
• Less heat
• Less space
• Less glare
• Three types of LCD technology
• Transmissive Illuminates by fluorescent
  backlighting renders the greatest color depth,
  sharpest text and highest resolutions of the
  three LCD techs. Uses the most power from battery
  and screen image can be overpowered by external
  bright lighting.
• Reflective Uses a mirror to reflect ambient
  light and illuminate the display. Uses less power
  from the battery. Reflective tech screens are
  ideal for use of bright sunlight but dim when
  used indoors.
• Transflective A hybrid btn transmissive and
  reflective screen technologies. When used indoors
  the transflective screens use backlighting to
  render images. When used outdoors absorb the
  suns rays to produce a brighter image. More
  expensive and typically reserved for special
  markets such as law enforcement.

2
Native resolution-- The number of individually
addressable pixels in the screen matrix.

• XGA 1024 x768 pixels 14 to 15 inch viewable
  area
• SXGA 1280 x1024 pixels 17 to 19 inch viewable
• UXGA 1600x1200 pixels 20 inch viewable area
• WXGA --1440x900 pixels 19 inch widescreen
  viewable area
• WSXGA-- 1680x1050 pixels 20 inch widescreen
  viewable area
• WUXGA 1920x1200 pixels 24inch widescreen
  viewable area

Active matrix? TFT technology Passive matrix? No
TFT Contrast RatioThe ratio btn the brightest
and darkest pixel. (4001 to 6001)
3
Notebook pointing devices
Glide surface
Right button
Left button
4
Communication connections

• LAN technology
• IEEE 1394
• IEEE 802.11g
• USB
• Wireless protocols
• Wi-Fi (Wireless Fidelity)
• WiMAX (Worldwide Interoperability for Microwave
  Access )
• Bluetooth
• Linking devices
• Infrared
• Radio
• Bluetooth

5
Infrared

• Pulses of infrared light
• 9600 bps to 4 Mbps
• 10 20 feet range
• Direct line of sight
• Infrared Serial Data Link (ISDL)
• 1.5 Mbps
• 20 feet

6
IrDA (Infrared Data Association) port
7
Radio

• Modulated signals sent over radio waves
• Not line of sight
• Varying technologies with varying features
• 802.11g 54 Mbps

8
802.11 wireless router
9
Bluetooth

• Short-range radio (10 meters)
• Self-configuring devices
• Cell phones, PDAs, music players, etc.

10
Notebook peripheral ports
Microphone port
Line out
Volume controls
11
PC Card types

• Type I3.3 mm thick
• Type II5 mm thick
• Type III10.5 mm thick

REM PCMCIA? Personal Computer Memory Card
International Association
Type II is the most common one used for modem,
network adapters, adding ports such as fire-wire
and SCSI some times for memory.
Type 1 used for memory? SODIMM replace it Type II
used for additional storage such as hard drive-?
not very common.
12
Type II PC Card
13
PC Card bus typeshttp//link.brightcove.com/servic
es/link/bcpid1213900614/bctid1342161636

• CardBus Provides a 32 bit bus mastering which
  allows direct communication between the card and
  other cards without requiring access to the
  computer CPU. Uses Card and socket Services
  automatically to allocate resources required by
  the add on.
• Zoomed Video Communicates directly between the
  Pc Card and the video controller without
  accessing the system bus.
• eXecute In Place Runs Commands directly from
  code stored on the PC Card without using system
  RAM.

14
Card and Socket Services

• Metaformat/Card Information Structure (CIS)
• -Composed of basic compatibility, Data Recording,
  Data Organization, System-Specific layers for a
  variety of system cards.
• Card Services
• -An API (application-programming interface )
  that enables sharing of devices and other
  software by PC Cards and sockets.
• -Designed to provide support for PC card devices
  to share device drivers, configuration utilities
  , and application programs
• -Designed to provide a single resource for
  functions shared by the software.
• Socket Services
• -Provides a common interface to the hardware that
  controls the socket into which PC cards are
  connected.
• -Provide the upper layers with information about
  the socket, including the number of sockets, the
  number of windows and the power needed for PC
  card.

An application-programming interface (API) is a
set of programming instructions and standards for
accessing a Web-based software application or Web
tool. A software company releases its API to the
public so that other software developers can
design products that are powered by its service.
15
Mini PCI card (Built in modem and network is
provided by mini PCI cards)
16
Port replicators and docking stations

• Port replicator
• Ports only, no slots, no drives
• Docking station
• Ports
• Slots for desktop cards
• Bays for drives

17
Port replicator
Front view Notebook connector
Rear view Peripheral ports
18
First Pictures of the Treo InMotion Docking
Station!!!
19
Notebook computer issues

• External peripherals not working
• Overheating
• Power problems
• Three types of batteries- Lithium ION (Li-Ion),
  Nickel Cadmium (NiCad) and Nickel metal-Hydride
  (NiMH)
• NiCad suffers from memory effect. Li-Ion has the
  longest lifetime.
• Zinc Air batteries use a carbon membrane to
  absorb oxygen. They also contain a zinc plate and
  use potassium hydroxide for the electrolyte.
• Fuel cells http//en.wikipedia.org/wiki/Fuel_cell
  are predicted to be popular battery choice in
  the future. These are still in development stage.
  Great potential for automobiles and other
  devices.
• Added components not recognized
• Display
• Wireless antenna

20
Maintenance

• Clean the exterior case
• Clean the touchpad
• Keep the fan openings and ventilation holes clear
• Blow out dust and other materials from sensitive
  components
• Clean the monitor
• Remove dust, crumbs, and dirt from between the
  keyboard keys
• Clean the CD or DVD-ROM drive